Months ago, a new kind of transportation came out. A company called Sky Drive gave a demonstration (示范) of its new flying, the SD-03. The small car 1 around for four minutes, staying about three to six feet 2 the ground. The SD-03 is powered by batteries (电池) and has eight motors (发动机).
What made this test flight 3 was that a pilot was on board. Tomohiro Fukuzawa, who leads Sky Drive, said, "Of the world's more than 100 flying car projects, only a few of them have 4 with a person on board."
Many 5 around the world are working to develop flying cars. Some governments, including Japan's, 6 the idea, hoping that in the future flying cars will be 7 for short trips like taxi rides in cities. Flying cars could also save 8 and reach places that can't be reached by roads. 9 is easy! There are also many challenges in the way. Con-trolling a flying car is 10 difficult that most people won't be able to do it. Some people 11 flying cars will reduce (减少) traffic jams (阻塞). 12 , new systems will be needed to help control traffic in the air. With lots of 13 flying around, the new systems may be too 14 for humans to manage. Also, flying cars will be very expensive.
Mr. Fukuzawa wants the SD-03 to be able to fly two passengers on trips of up to three miles by 2023. He hopes people will be able to fly 15 inside Tokyo in just ten minutes by 2050.